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The perimeter of a rectangle is 60cm. its length is twice its width. find its length

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the perimeter of a rectangle is 60cm. its length is twice its width. find its length

asked Nov 20, 2013 in ALGEBRA 1 by johnkelly Apprentice

1 Answer

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Let width of rectangle = x

Now its length is be 2x

Perimeter of rectangle = 2(x+2x)

60 = 2(3x)

60 = 6x

Divide by 6 to each side.

60/6 = 6x/6

10 = x

width = 10cm

length = 2*10 = 20cm

Length of given rectangle = 20cm

answered Nov 20, 2013 by william Mentor

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